Final point: I don’t see any “burned out kids” from helping at home, am I really that oblivious?
Coming from a large family myself ke”h, I can say there is such a thing as being burned out, and/or a feeling of taken advantage of that never ever leaves the person. Possibly, it would have happened if my family was smaller too, I do not know.
As for being just part of a group, I don’t think that is true. Even in a family of two, parents can show favoritism, and that will cause one child to feel like a nothing.